Upstream Chrome on iOS source code [4/11].

ios/chrome/browser/ui/collection_view/collection_view_controller_test.mm

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "ios/chrome/browser/ui/collection_view/collection_view_controller_test.h"
+
+#include "base/ios/weak_nsobject.h"
+#include "base/logging.h"
+#import "base/mac/foundation_util.h"
+#include "base/mac/scoped_nsobject.h"
+#import "ios/chrome/browser/ui/collection_view/cells/collection_view_detail_item.h"
+#import "ios/chrome/browser/ui/collection_view/cells/collection_view_footer_item.h"
+#import "ios/chrome/browser/ui/collection_view/cells/collection_view_item.h"
+#import "ios/chrome/browser/ui/collection_view/cells/collection_view_switch_item.h"
+#import "ios/chrome/browser/ui/collection_view/cells/collection_view_text_item.h"
+#import "ios/chrome/browser/ui/collection_view/collection_view_controller.h"
+#import "ios/chrome/browser/ui/collection_view/collection_view_model.h"
+
+#include "testing/gtest_mac.h"
+#include "ui/base/l10n/l10n_util.h"
+
+CollectionViewControllerTest::CollectionViewControllerTest() {}
+
+CollectionViewControllerTest::~CollectionViewControllerTest() {}
+
+void CollectionViewControllerTest::TearDown() {
+  // Delete the controller before deleting other test variables, such as a
+  // profile, to ensure things are cleaned up in the same order as in Chrome.
+  controller_.reset();
+  BlockCleanupTest::TearDown();
+}
+
+void CollectionViewControllerTest::CreateController() {
+  DCHECK(!controller_);
+  controller_.reset(NewController());
+  // Force the model to be loaded.
+  [controller_ loadModel];
+  // Force the collectionView to be built.
+  EXPECT_TRUE([controller_ view]);
+}
+
+CollectionViewController* CollectionViewControllerTest::controller() {
+  if (!controller_)
+    CreateController();
+  return controller_.get();
+}
+
+void CollectionViewControllerTest::ResetController() {
+  controller_.reset();
+}
+
+void CollectionViewControllerTest::CheckController() {
+  EXPECT_TRUE([controller_ view]);
+  EXPECT_TRUE([controller_ collectionView]);
+  EXPECT_TRUE([controller_ collectionViewModel]);
+  EXPECT_EQ(controller_.get(), [controller_ collectionView].dataSource);
+  EXPECT_EQ(controller_.get(), [controller_ collectionView].delegate);
+}
+
+int CollectionViewControllerTest::NumberOfSections() {
+  return [[controller_ collectionViewModel] numberOfSections];
+}
+
+int CollectionViewControllerTest::NumberOfItemsInSection(int section) {
+  return [[controller_ collectionViewModel] numberOfItemsInSection:section];
+}
+
+id CollectionViewControllerTest::GetCollectionViewItem(int section, int item) {
+  CollectionViewModel* model = [controller_ collectionViewModel];
+  NSIndexPath* index_path =
+      [NSIndexPath indexPathForItem:item inSection:section];
+  CollectionViewItem* collection_view_item =
+      [model hasItemAtIndexPath:index_path] ? [model itemAtIndexPath:index_path]
+                                            : nil;
+  EXPECT_TRUE(collection_view_item);
+  return collection_view_item;
+}
+
+void CollectionViewControllerTest::CheckTitle(NSString* expected_title) {
+  EXPECT_NSEQ(expected_title, [controller_ title]);
+}
+
+void CollectionViewControllerTest::CheckTitleWithId(int expected_title_id) {
+  CheckTitle(l10n_util::GetNSString(expected_title_id));
+}
+
+void CollectionViewControllerTest::CheckSectionHeader(NSString* expected_title,
+                                                      int section) {
+  CollectionViewItem* header =
+      [[controller_ collectionViewModel] headerForSection:section];
+  ASSERT_TRUE([header respondsToSelector:@selector(text)]);
+  EXPECT_NSEQ(expected_title, [(id)header text]);
+}
+
+void CollectionViewControllerTest::CheckSectionHeaderWithId(
+    int expected_title_id,
+    int section) {
+  CheckSectionHeader(l10n_util::GetNSString(expected_title_id), section);
+}
+
+void CollectionViewControllerTest::CheckSectionFooter(NSString* expected_text,
+                                                      int section) {
+  ASSERT_EQ(1, NumberOfItemsInSection(section));
+  CollectionViewFooterItem* footer_item =
+      base::mac::ObjCCastStrict<CollectionViewFooterItem>(
+          GetCollectionViewItem(section, 0));
+  EXPECT_NSEQ(expected_text, footer_item.text);
+}
+
+void CollectionViewControllerTest::CheckSectionFooterWithId(
+    int expected_text_id,
+    int section) {
+  return CheckSectionFooter(l10n_util::GetNSString(expected_text_id), section);
+}
+
+void CollectionViewControllerTest::CheckTextCellTitle(NSString* expected_title,
+                                                      int section,
+                                                      int item) {
+  CollectionViewTextItem* cell = GetCollectionViewItem(section, item);
+  EXPECT_NSEQ(expected_title, cell.text);
+  EXPECT_FALSE(cell.detailText);
+}
+
+void CollectionViewControllerTest::CheckTextCellTitleWithId(
+    int expected_title_id,
+    int section,
+    int item) {
+  CheckTextCellTitle(l10n_util::GetNSString(expected_title_id), section, item);
+}
+
+void CollectionViewControllerTest::CheckTextCellTitleAndSubtitle(
+    NSString* expected_title,
+    NSString* expected_subtitle,
+    int section,
+    int item) {
+  CollectionViewTextItem* cell = GetCollectionViewItem(section, item);
+  EXPECT_NSEQ(expected_title, cell.text);
+  EXPECT_NSEQ(expected_subtitle, cell.detailText);
+}
+
+void CollectionViewControllerTest::CheckDetailItemTextWithIds(
+    int expected_text_id,
+    int expected_detail_text_id,
+    int section_id,
+    int item_id) {
+  CollectionViewDetailItem* item = GetCollectionViewItem(section_id, item_id);
+  EXPECT_NSEQ(l10n_util::GetNSString(expected_text_id), item.text);
+  EXPECT_NSEQ(l10n_util::GetNSString(expected_detail_text_id), item.detailText);
+}
+
+void CollectionViewControllerTest::CheckSwitchCellStateAndTitle(
+    BOOL expected_state,
+    NSString* expected_title,
+    int section,
+    int item) {
+  CollectionViewSwitchItem* cell = GetCollectionViewItem(section, item);
+  EXPECT_NSEQ(expected_title, cell.text);
+  EXPECT_EQ(expected_state, cell.isOn);
+}
+
+void CollectionViewControllerTest::CheckSwitchCellStateAndTitleWithId(
+    BOOL expected_state,
+    int expected_title_id,
+    int section,
+    int item) {
+  CheckSwitchCellStateAndTitle(
+      expected_state, l10n_util::GetNSString(expected_title_id), section, item);
+}
+
+void CollectionViewControllerTest::CheckAccessoryType(
+    MDCCollectionViewCellAccessoryType accessory_type,
+    int section,
+    int item) {
+  id text_item = GetCollectionViewItem(section, item);
+  EXPECT_TRUE([text_item respondsToSelector:@selector(accessoryType)]);
+  EXPECT_EQ(accessory_type,
+            (MDCCollectionViewCellAccessoryType)[text_item accessoryType]);
+}
+
+void CollectionViewControllerTest::DeleteItem(
+    int section,
+    int item,
+    ProceduralBlock completion_block) {
+  NSIndexPath* index_path =
+      [NSIndexPath indexPathForItem:item inSection:section];
+  base::WeakNSObject<CollectionViewController> weak_controller(controller_);
+  void (^batch_updates)() = ^{
+    base::scoped_nsobject<CollectionViewController> strong_controller(
+        [weak_controller retain]);
+    if (!strong_controller)
+      return;
+    // Notify delegate to delete data.
+    [strong_controller collectionView:[strong_controller collectionView]
+          willDeleteItemsAtIndexPaths:@[ index_path ]];
+
+    // Delete index paths.
+    [[strong_controller collectionView]
+        deleteItemsAtIndexPaths:@[ index_path ]];
+  };
+
+  void (^completion)(BOOL finished) = ^(BOOL finished) {
+    // Notify delegate of deletion.
+    base::scoped_nsobject<CollectionViewController> strong_controller(
+        [weak_controller retain]);
+    if (!strong_controller)
+      return;
+    [strong_controller collectionView:[strong_controller collectionView]
+           didDeleteItemsAtIndexPaths:@[ index_path ]];
+    if (completion_block) {
+      completion_block();
+    }
+  };
+
+  [[controller_ collectionView] performBatchUpdates:batch_updates
+                                         completion:completion];
+}